COMP Cams Cam & Lifter Kit FW 299T HR-7

If you're looking to significantly upgrade the performance of your Ford 351W engine, the COMP Cams Big Mutha' Thumpr 243/257 Hydraulic Roller Cam and Lifter Kit is a solid choice. This kit is designed for street/strip applications and is compatible with a wide range of Ford vehicles, including the Bronco, F-150, and Econoline vans from the early 70s through the mid-90s. It's a comprehensive package aimed at giving your engine a much more aggressive personality and a noticeable bump in power.

This kit features a hydraulic roller camshaft with a 243/257 degree intake/exhaust duration and a 113-degree lobe separation angle. To get the most out of this cam, COMP Cams recommends a minimum of 9.5:1 compression, a 2800+ RPM stall torque converter if you have an automatic transmission, and supporting modifications like an upgraded intake manifold, rear gears, and headers. Expect a very rough idle, which is characteristic of cams designed for maximum performance in this category. The kit comes complete with the camshaft, hydraulic roller lifters, assembly lube to ensure proper break-in, decals, and installation instructions, making it a well-rounded package for your engine build.

When installing this cam and lifter kit, it's crucial to follow the included instructions carefully, especially regarding the assembly lube and break-in procedure for the lifters. This is a significant modification that will change the driving feel of your vehicle, so be prepared for the rough idle and the need for supporting modifications to achieve optimal performance. Please note that this part is not CARB approved and cannot be shipped to California.